Re: How to mask out topography?

Hi Yi

I mean to say, "to draw with a polygon" (not with a polyline) in my
explanation below.

Andrea

Andrea Hahmann wrote:
> Yi
>
> What I have done in the past is to "draw" the mountain with one of the
> polyline functions on top of the mountain. In my case I had a lon x
> pressure, and I drew a polyline using the surface pressure at each point
> along the cross section (see plot attached). In your case I think you
> want to use the surface height along the mountain.
>
> Good luck,
> Andrea
>
> Wang, Yi wrote:
>
>> Hi Folks:
>>
>> I have a 2-D plot with an idealized mountain. See my plot.
>>
>> I want to mask out those data which has been plotted underneath the
>> mountain.
>>
>> What should I do?
>>
>> Thanks,
>>
>> Yi
>>
>>
>>
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>
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-- 
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Andrea N. Hahmann, Ph.D.
Research Applications Laboratory
Natl. Center for Atmospheric Research      Phone: 1-303-497-8383
PO BOX 3000                                Fax:   1-303-497-8401
Boulder, CO 80301                          hahmann_at_ucar.edu
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